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Simpson Strong-Tie Timber-SET glued-in rod (GIR) adhesiveSimpson Strong-Tie Timber-SET glued-in rod (GIR) adhesive

The first code-listed glued-in rod adhesive in North America

Engineered for reliable, concealed performance in mass‑timber construction, Timber‑SET™ epoxy brings ICC‑ES‑evaluated strength to glued‑in‑rod (GIR) connections in glulam. Its tested formulation supports high‑capacity, steel‑to‑wood connections while helping streamline installation. Paired with our complete line of GIR components — including threaded rods, centering and retaining caps, dispensing tools, and reinforcing screws — it delivers a versatile, job‑ready solution for your next mass‑timber project.

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Close-up of outdoor wooden pergola beams with black metal brackets and fasteners, showing structural hardware attached to natural wood.

Outdoor Accents® Essentials are here

We're expanding our Outdoor Accents Essentials products to include joist hangers, post bases and caps, hurricane ties, stair stringers, angles and more fasteners. Build custom outdoor structures with decorative hardware that is load-rated, easy to install and readily available.

Cover of Simpson Strong-Tie catalog titled 'Connectors for Cold-Formed Steel Construction,' showing various steel connectors in gray, red, and blue with company logo and contact info.

New Catalog: Connectors for Cold-Formed Steel Construction

Our latest Cold-Formed Steel catalog includes specifications, load tables and installation illustrations for our cold-formed steel connectors and clips, helping you easily specify and install in commercial curtain-wall, mid-rise and residential construction